Post by thread:Assembler Error

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The following line produces the error 'bad byte value'

movlw B'00000001'

The assembler points to the beginning of the binary number. I'm using
AF84 version 1.02 - a DOS assembler. Any good source of knowledge for a
raw beginer in assembly language would be nice. I cannot find anything
that caters for idiots.

Kevin

It is perfectly good MPASM syntax. Why don't you use MPASM? MPASM is a DOS app too. Also FREE, including the docs. GL, Walt... -----Original Message----- From: Kevin Thomas [spam_OUTvk5kksTakeThisOuTSENET.COM.AU] Sent: Thursday, February 24, 2000 11:09 AM To: .....PICLISTKILLspam@spam@MITVMA.MIT.EDU Subject: Assembler Error The following line produces the error 'bad byte value' movlw B'00000001' The assembler points to the beginning of the binary number. I'm using AF84 version 1.02 - a DOS assembler. Any good source of knowledge for a raw beginer in assembly language would be nice. I cannot find anything that caters for idiots. Kevin

Trying putting the B at the END of the value, as in movlw 00000001B or get rid of the ' which the assembler may be trying to interpret as a single Ascii conversion request. movlw 'A' ;put ASCII A into W And try MPASM. Buggy as it is, its still a very nice development environment. Kevin Thomas wrote: {Quote hidden}> > The following line produces the error 'bad byte value' > > movlw B'00000001' > > The assembler points to the beginning of the binary number. I'm using > AF84 version 1.02 - a DOS assembler. Any good source of knowledge for > a > raw beginer in assembly language would be nice. I cannot find anything > that caters for idiots. > > Kevin

Hi, I do not know that assembler but I suspect it does not like that strange Mchip format. You can try the following ones: movlw 00000001b movlw b'00000001 movlw 0b00000001 It can be a RTFM error, I guess. Regards, Imre On Fri, 25 Feb 2000, Kevin Thomas wrote: {Quote hidden}> The following line produces the error 'bad byte value' > > movlw B'00000001' > > The assembler points to the beginning of the binary number. I'm using > AF84 version 1.02 - a DOS assembler. Any good source of knowledge for a > raw beginer in assembly language would be nice. I cannot find anything > that caters for idiots. > > Kevin >